The LDC board on the client side receives four types of signals, which are OTU4, 100GE, FC3200, and FC1600. The LDC converts signals as follows:

200G line:

• 2 x OTU4 <-> 2 x ODU4 <-> 1 x ODUC2 <-> 1 x OTUC2
• 2 x 100GE <-> 2 x ODU4 (Bit transparent mapping/MAC transparent mapping) <-> 1 x OTUC2
• 2 x 100GE <-> 2 x ODUflex (MAC transparent mapping) <-> 2 x ODU4 <-> ODUC2 <-> 1 x OTUC2
• 2 x FC3200 <-> 2 x ODUflex <-> 1 x ODUC2 <-> 1 x OTUC2
• 2 x FC1600 <-> 2 x ODUflex <-> 1 x ODUC2 <-> 1 x OTUC2

100G line:

• 1 x OTU4 <-> 1x ODU4 <-> 1 x OTU4
• 1 x 100GE <->1 x ODU4 (Bit transparent mapping/MAC transparent mapping) <-> 1 x OTU4
• 1 x 100GE <-> 1 x ODUflex (MAC transparent mapping) <-> 1 x ODU4 <-> 1 x OTU4
• 2 x FC3200 <-> 2 x ODUflex <-> 1 x ODU4 <-> 1 x OTU4
• 2 x FC1600 <-> 2 x ODUflex <-> 1 x ODU4 <-> 1 x OTU4

100GE: Ethernet service at a rate of 103.125 Gbit/s.

OTU4: OTN service at a rate of 111.81 Gbit/s

FC1600: SAN service at a rate of 14.025 Gbit/s

FC3200: SAN service at a rate of 28.05 Gbit/s

• Supports OTUC2 or OTU4 interfaces on the WDM side.
• Uses the frame formats and overhead processing methods defined in ITU-T G.709.
• At the ODU4 layer:
  • Supports PM overhead processing when 100GE services are received on the client side.
  • Supports PM and TCM overhead processing when OTU4 services are received on the client side. This board supports non-intrusive monitoring of PM and TCM overheads.
• Supports PM overhead processing at the ODUflex layer.
• Supports PM overhead processing at the ODUC2 layer.
• Supports SM overhead processing at the OTU4 layer on the client side.
• Supports SM overhead processing at the OTUC2 and OTU4 layer on the WDM side.

Supports ITU-T G.694.1-compliant DWDM specifications.

Supported

On the client side:

Supports Supports ITU-T G.709-compliant forward error correction (FEC) on the client side when the client-side service type is OTU4.

Supports RS_FEC coding when the client-side service type is 100GE or FC3200.

On the WDM side:

Supports SDFEC-R coding.

• Monitors BIP8 bytes (Bursty mode) to help locate line failures.
• Monitors OTN alarms and performance events.
• Monitors parameters such as the bias current, temperature, and optical power of the laser.

• Supports the remote monitoring (RMON) of Ethernet services.

• Supports the monitoring of CD and PMD performance.

The WDM-side signals from an LDC board can be regenerated only by another LDC board of the same type.

Supports the ALS function on the client side when client services are non-OTN services.

When OTU4 services are received on the client side, latency measurement is not supported.

Bit Transparent Mapping ODU4, MAC Transparent Mapping ODU4

• Supports client 1+1 protection.
• Supports intra-board 1+1 protection (when working with the OLP/DCP/QCP board).
• When a (100GBASE-4×25G)-SR4-100m-QSFP28 module or an 112.2Gbit/s Multirate-0.1km-QSFP28 module is used on the client side, the LDC board does not support client 1+1 protection.
• When 100GE services are received on the client side, client 1+1 protection supports bidirectional switching rather than unidirectional switching. When OTU4 services are received on the client side, client 1+1 protection supports unidirectional switching.

Protocols or standards compliance

Protocols or standards for transparent transmission (non-performance monitoring)

IEEE 802.3ba

NCITS FIBRE CHANNEL PHYSICAL INTERFACES (FC-PI)

NCITS FIBRE CHANNEL LINK SERVICES (FC-LS)

NCITS FIBRE CHANNEL FRAMING AND SIGNALING-2 (FC-FS-2)

NCITS FIBRE CHANNEL BACKBONE-3 (FC-BB-3)

NCITS FIBRE CHANNEL SWITCH FABRIC-3 (FC-SW-3)

NCITS FIBRE CHANNEL - PHYSICAL AND SIGNALING INTERFACE (FC-PH)

Protocols or standards for service processing (performance monitoring)

ITU-T G.805

ITU-T G.806

ITU-T G.709

ITU-T G.872

ITU-T G.7710

ITU-T G.798

ITU-T G.874

ITU-T M.3100

ITU-T G.874.1

ITU-T G.875

ITU-T G.808.1

ITU-T G.841

ITU-T G.8201

ITU-T G.694.1

ITU-T G.8261

ITU-T G.8262

OTUC2: a rate of 224.6 Gbit/s

OTU4: a rate of 111.81 Gbit/s

200G regeneration:

• Supports OTUC2 interfaces on the WDM side.
• Uses the frame formats and overhead processing methods defined in ITU-T G.709.
• ODUC2 layer: supports PM overhead processing, and non-intrusive monitoring of PM overheads.
• OTUC2 layer: supports SM overhead processing.

100G regeneration:

• Supports OTU4 interfaces on the WDM side.
• Uses the frame formats and overhead processing methods defined in ITU-T G.709.
• ODU4 layer: supports PM and TCM overhead processing, and non-intrusive monitoring of PM and TCM overheads.
• OTU4 layer: supports SM overhead processing.

Supports ITU-T G.694.1-compliant DWDM specifications.

Supported

• Monitors OTN alarms and performance events.
• Monitors parameters such as the bias current, temperature, and optical power of the laser.
• Supports CD and PMD performance monitoring.

Protocols or standards compliance

Protocols or standards for transparent transmission (non-performance monitoring)

Protocols or standards for service processing (performance monitoring)

ITU-T G.805

ITU-T G.806

ITU-T G.709

ITU-T G.872

ITU-T G.7710

ITU-T G.798

ITU-T G.874

ITU-T M.3100

ITU-T G.874.1

ITU-T G.875

ITU-T G.808.1

ITU-T G.841

ITU-T G.8201

ITU-T G.694.1

ITU-T G.8261

ITU-T G.8262